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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2021
Fair Value Measurements |
Assets and Liabilities Measured at Fair Value on Recurring Basis | The Company’s assets and liabilities measured at fair value on a recurring basis at June 30, 2021 and December 31, 2020, were as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Markets for |  | Observable |  | Unobservable
​ | ​ | June 30, | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ | ​ | 2021 | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Deferred compensation plan investments | ​ | $ | 30,637 | ​ | $ | 30,637 | ​ | $ | — | ​ | $ | —
Total assets measured at fair value | ​ | $ | 30,637 | ​ | $ | 30,637 | ​ | $ | — | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Variable to fixed interest rate swaps | ​ | $ | 19,532 | ​ | $ | — | ​ | $ | 19,532 | ​ | $ | —
Total liabilities measured at fair value | ​ | $ | 19,532 | ​ | $ | — | ​ | $ | 19,532 | ​ | $ | —
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Markets for |  | Observable |  | Unobservable
​ | ​ | December 31, | ​ | Identical Assets | ​ | Inputs | ​ | Inputs
​ | ​ | 2020 | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3)
Deferred compensation plan investments | ​ | $ | 31,277 | ​ | $ | 31,277 | ​ | $ | — | ​ | $ | —
Total assets measured at fair value | ​ | $ | 31,277 | ​ | $ | 31,277 | ​ | $ | — | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Variable to fixed interest rate swaps | ​ | $ | 27,819 | ​ | $ | — | ​ | $ | 27,819 | ​ | $ | —
Total liabilities measured at fair value | ​ | $ | 27,819 | ​ | $ | — | ​ | $ | 27,819 | ​ | $ | —

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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